CN113600868B - Method and device for determining circle center of cylinder hole and fine boring machine tool - Google Patents
Method and device for determining circle center of cylinder hole and fine boring machine tool Download PDFInfo
- Publication number
- CN113600868B CN113600868B CN202110724483.XA CN202110724483A CN113600868B CN 113600868 B CN113600868 B CN 113600868B CN 202110724483 A CN202110724483 A CN 202110724483A CN 113600868 B CN113600868 B CN 113600868B
- Authority
- CN
- China
- Prior art keywords
- cylinder hole
- center
- center coordinate
- coordinate
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 84
- 238000005259 measurement Methods 0.000 claims abstract description 74
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000004364 calculation method Methods 0.000 claims description 22
- 230000009466 transformation Effects 0.000 claims description 7
- 230000008901 benefit Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005253 cladding Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 238000010923 batch production Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/12—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for forming working surfaces of cylinders, of bearings, e.g. in heads of driving rods, or of other engine parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
- B23B49/04—Devices for boring or drilling centre holes in workpieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
The invention discloses a method for determining the circle center of a cylinder hole, which is applied to the stage of finely boring the cylinder hole in a cylinder hole meltallizing process and comprises the following steps: controlling a measuring head of a fine boring machine tool to start from a design center of the fine boring machine tool, and obtaining a first cylinder hole center coordinate of a cylinder hole to be measured by a four-point circle center measuring method; controlling the measuring head to return to the design center, and controlling the main shaft of the measuring head to rotate for N times according to a preset angle; after each rotation, controlling the measuring head to start from the design center, and obtaining the center coordinate of the (i + 1) th cylinder hole of the cylinder hole to be measured in the ith rotation by the four-point circle center measuring method; n is more than or equal to 2 and is an integer, and i takes the values of 1,2, \8230, and N in sequence; determining the circle center coordinate of the cylinder hole to be measured according to the first cylinder hole center coordinate and the (i + 1) th cylinder hole center coordinate; the method for determining the center of the cylinder hole can give consideration to the measurement efficiency, the measurement precision and the measurement cost of the center of the cylinder hole.
Description
Technical Field
The application relates to the technical field of machining, in particular to a method and a device for determining the circle center of a cylinder hole and a fine boring machine tool.
Background
After the cylinder hole meltallizing process is carried out, namely: in the cylinder liner-free technology, an iron-based coating with the thickness of about 0.3mm needs to be cladded in a machined cylinder hole, and then the coating with the thickness of about 0.15mm needs to be removed in the subsequent fine boring of the cylinder hole. On one hand, because the cladding coating and the fine boring cylinder hole are not processed in the same process, a positioning error exists between the cladding coating and the fine boring cylinder hole; on the other hand, cylinder hole heating is needed during cladding, cladding itself also generates heat, the cylinder hole deforms around the environment of 250 ℃, and heat conduction in all directions of the cylinder hole is different, so that cylinder hole deformation occurs, and the deformation directions of the cylinder holes are different, as shown in fig. 1. If the center coordinates are not measured again at the moment, or the processing is carried out according to the center coordinates before deformation, a large amount of cladding coatings are processed and penetrated, the aluminum-based cylinder body is exposed, and the condition that workpieces are scrapped appears.
At present, a related scheme for determining the circle center during the fine boring of a cylinder hole is to use a cross probe to scan the inner wall of the cylinder hole for a circle to obtain a plurality of position coordinates, and then calculate the circle center of the cylinder hole by using a least square method. Although the precision of the method is high, scanning equipment needs to be additionally arranged outside the fine boring machine tool, the center coordinates are calculated by using a computer and input into the fine boring machine tool after data of scanning cylinder holes are obtained, and therefore the method is high in cost and needs to greatly modify the existing fine boring machine tool. Meanwhile, when the circle center is measured by the method, the workpiece needs to be repeatedly clamped, and thus, positioning errors can be caused.
Disclosure of Invention
The invention provides a method and a device for determining the circle center of a cylinder hole and a fine boring machine tool, which aim to solve or partially solve the technical problem that the cost is increased because the circle center of the cylinder hole is determined by an external scanning method and the fine boring machine tool needs to be further modified in the cylinder hole meltallizing process in the prior art.
In order to solve the technical problem, the invention provides a method for determining the circle center of a cylinder hole, which is applied to a stage of finely boring the cylinder hole in a cylinder hole meltallizing process, and comprises the following steps:
controlling a measuring head of a fine boring machine tool to start from a design center of the fine boring machine tool, and obtaining a first cylinder hole center coordinate of a cylinder hole to be measured by a four-point circle center measuring method;
controlling the measuring head to return to the design center, and controlling the main shaft of the measuring head to rotate for N times according to a preset angle; after each rotation, controlling the measuring head to start from the design center, and obtaining the (i + 1) th cylinder hole center coordinate of the cylinder hole to be measured in the ith rotation by the four-point circle center measuring method; n is more than or equal to 2 and is an integer, i takes the values of 1,2, \8230;, N in sequence;
and determining the circle center coordinate of the cylinder hole to be measured according to the first cylinder hole center coordinate and the (i + 1) th cylinder hole center coordinate.
Optionally, after the i +1 th cylinder hole center coordinate of the cylinder hole to be measured in the i-th rotation is obtained by the four-point circle center measuring method, the determining method further includes:
converting the center coordinate of the (i + 1) th cylinder hole to an initial measurement coordinate system according to the corresponding rotation angle to obtain the converted center coordinate of the (i + 1) th cylinder hole; the initial measurement coordinate system is a measurement coordinate system of the measuring head when measuring the center coordinate of the first cylinder hole;
the determining the coordinates of the circle center of the cylinder hole to be measured according to the first cylinder hole center coordinate and the (i + 1) th cylinder hole center coordinate comprises:
and determining the circle center coordinate of the cylinder hole according to the first cylinder hole center coordinate and the transformed (i + 1) th cylinder hole center coordinate.
Further, determining the center coordinates of the cylinder hole according to the center coordinates of the first cylinder hole and the transformed (i + 1) th cylinder hole, includes:
performing mean value calculation according to the abscissa of the center coordinate of the first cylinder hole and the abscissas of the center coordinates of all the converted (i + 1) th cylinder holes to obtain the abscissa of the center coordinate of the cylinder hole;
and performing mean value calculation according to the ordinate of the center coordinate of the first cylinder hole and the ordinate of the center coordinate of the i +1 th cylinder hole after transformation to obtain the ordinate of the center coordinate of the cylinder hole.
Further, determining the center coordinates of the cylinder hole according to the center coordinates of the first cylinder hole and the transformed (i + 1) th cylinder hole, includes:
acquiring a theoretical abscissa and a theoretical ordinate of the circle center of the cylinder hole to be measured;
carrying out mean value calculation according to the abscissa of the center coordinate of the target cylinder hole to obtain the abscissa of the center coordinate of the cylinder hole;
carrying out mean value calculation according to the vertical coordinate of the center coordinate of the target cylinder hole to obtain the vertical coordinate of the center coordinate of the cylinder hole;
wherein if the absolute value of the difference between the abscissa of the first cylinder bore center coordinate and the theoretical abscissa is within 0.2mm, and the absolute value of the difference between the ordinate of the first cylinder bore center coordinate and the theoretical ordinate is within 0.2mm, the first cylinder bore center coordinate is taken as the target cylinder bore center coordinate;
and if the absolute value of the difference between the abscissa of the center coordinate of the (i + 1) th cylinder hole and the theoretical abscissa is within 0.2mm, and the absolute value of the difference between the ordinate of the center coordinate of the (i + 1) th cylinder hole and the theoretical ordinate is within 0.2mm, taking the center coordinate of the (i + 1) th cylinder hole as the center coordinate of the target cylinder hole.
Optionally, the obtaining of the i +1 th cylinder hole center coordinate of the cylinder hole to be measured in the i-th rotation by the four-point circle center measuring method includes:
controlling the measuring head to move back and forth along the X direction of the fine boring machine tool, acquiring a first transverse measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole to be measured, and acquiring a second transverse measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole to be measured;
after the measuring head returns to the design center, controlling the measuring head to move back and forth along the Y direction of the fine boring machine tool, acquiring a first longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole to be measured, and acquiring a second longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole to be measured;
determining the abscissa of the i +1 th cylinder hole center coordinate according to the first transverse measurement value and the second transverse measurement value; determining the ordinate of the i +1 th cylinder bore center coordinate from the first longitudinal measurement and the second longitudinal measurement.
Optionally, the value range of N is 5 to 11.
Further, the value range of the preset angle is 8-15 degrees.
Optionally, the measuring head is a cross measuring head, the diameter of the cross measuring head is equal to the difference value between the diameter of the cylinder hole to be measured and a preset value, and the value range of the preset value is 4 mm to 6 mm.
According to another alternative embodiment of the present invention, there is provided a cylinder hole center determining apparatus, including:
the measuring module is used for controlling a measuring head of the fine boring machine tool to start from a design center of the fine boring machine tool and obtaining a first cylinder hole center coordinate of the cylinder hole to be measured by a four-point circle center measuring method; controlling the main shaft of the measuring head to rotate for N times according to a preset angle; after each rotation, controlling the measuring head to start from the design center, and obtaining the (i + 1) th cylinder hole center coordinate of the cylinder hole to be measured in the ith rotation by the four-point circle center measuring method; n is more than or equal to 3 and is an integer, i takes the values of 1,2, \8230;, N;
and the determining module is used for determining the circle center coordinate of the cylinder hole to be measured according to the first cylinder hole center coordinate and the (i + 1) th cylinder hole center coordinate.
According to a further alternative embodiment of the invention, a fine boring machine is provided, the controller of which is programmed to carry out the steps of the determination method according to any one of the preceding claims.
Through one or more technical schemes of the invention, the invention has the following beneficial effects or advantages:
the invention provides a method for determining the circle center of a cylinder hole, which is characterized in that a measuring head is controlled to start from a design center of a fine boring machine tool, and a four-point circle center measuring method is adopted to obtain the center coordinate of the cylinder hole; then controlling the measuring head to return to the design center, rotating according to a preset angle, and measuring the center coordinate of the cylinder hole after rotating; after N times of rotation and measurement, obtaining N +1 groups of cylinder hole center coordinates in total, and then comprehensively determining the cylinder hole circle center coordinates of the cylinder hole to be measured according to the obtained N +1 groups of cylinder hole center coordinates; the cylinder hole is rotated according to a preset angle, and a plurality of groups of cylinder hole center coordinates are obtained by a four-point circle center measuring method to determine a final circle center coordinate, so that the adverse effects of cylinder hole meltallizing deformation and inner wall burrs on circle center alignment are overcome; the reason why the measuring head is controlled to rotate and start at the design center when the center coordinate of the cylinder hole is measured every time is that practice shows that compared with a method that the measuring head does not return to the design center and starts from any point to directly measure, the center coordinate of the cylinder hole center with higher precision can be obtained when the measuring head rotates and starts at the design center. Generally speaking, according to the scheme, the accurate measurement of the circle center of the cylinder hole of the workpiece in the fine boring machine tool can be realized by using the existing measuring head technology on the premise of not significantly changing the layout of the existing fine boring machine tool and the production line, the advantages of considering measurement efficiency, measurement precision and measurement cost are achieved, the rejection rate of the workpiece can be reduced, the production cost is saved, and the comprehensive efficiency of equipment during batch production is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a diagram showing a simulation of a workpiece in the related art in which deformation occurs after cylinder bore meltdown;
FIG. 2 shows a schematic flow diagram of a method for determining the center of a cylinder bore according to one embodiment of the present invention;
fig. 3 is a schematic view showing a posture of a measuring head rotating a preset angle according to another embodiment of the present invention;
fig. 4 shows a schematic diagram of a determination device of the center of a cylinder hole according to another embodiment of the present invention.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings. Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control. Unless otherwise specifically stated, various apparatuses and the like used in the present invention are either commercially available or can be prepared by existing methods.
In order to reduce the cost of measuring the circle center in the fine boring process, the circle center can be measured by directly using a cross measuring head four-point method of a fine boring machine tool. The cross measuring head four-point method has the advantages of simple and convenient measurement and no need of hardware modification of a fine boring machine tool. However, in the cylinder hole meltallizing process, because the center of a circle is deformed, the actual position of the center of the circle after the cylinder hole is deformed cannot be accurately obtained by a conventional single four-point measurement method, and a measurement result is separated from the actual position easily due to burrs on the surface of the cylinder hole in one measurement, so that work waste is caused.
In order to overcome the problems, the invention provides a method for determining the circle center of a cylinder hole in a fine boring cylinder hole stage applied to a cylinder hole meltallizing process, which has the following overall thought:
controlling a measuring head of a fine boring machine tool to start from a design center of the fine boring machine tool, and obtaining a first cylinder hole center coordinate of a cylinder hole to be measured by a four-point circle center measuring method; controlling the measuring head to return to the design center, and controlling the main shaft of the measuring head to rotate for N times according to a preset angle; after each rotation, controlling the measuring head to start from the design center, and obtaining the (i + 1) th cylinder hole center coordinate of the cylinder hole to be measured in the ith rotation by the four-point circle center measuring method; n is more than or equal to 3 and is an integer, i takes the values of 1,2, \8230;, N; and determining the circle center coordinate of the cylinder hole to be measured according to the first cylinder hole center coordinate and the (i + 1) th cylinder hole center coordinate.
The improved principle of the cylinder hole circle center determining method is as follows: the measuring head is controlled to start from the design center of the fine boring machine tool, and the center coordinate of the cylinder hole is obtained by adopting a four-point circle center measuring method; then controlling the measuring head to return to the design center, rotating according to a preset angle, and measuring the center coordinate of the cylinder hole after rotating; after N times of rotation and measurement, obtaining N +1 groups of cylinder hole center coordinates in total, and then comprehensively determining the cylinder hole circle center coordinates of the cylinder hole to be measured according to the obtained N +1 groups of cylinder hole center coordinates; the cylinder hole is rotated according to a preset angle, and a plurality of groups of cylinder hole center coordinates are obtained by a four-point circle center measuring method to determine a final circle center coordinate, so that the adverse effects of cylinder hole meltallizing deformation and inner wall burrs on circle center alignment are overcome; the reason why the measuring head is controlled to rotate and start at the design center when the center coordinate of the cylinder hole is measured every time is that practice shows that compared with a method that the measuring head does not return to the design center and starts from any point to directly measure, the center coordinate of the cylinder hole center with higher precision can be obtained when the measuring head rotates and starts at the design center. Generally speaking, according to the scheme, the accurate measurement of the circle center of the cylinder hole of the workpiece in the fine boring machine tool can be realized by using the existing measuring head technology on the premise of not significantly changing the layout of the existing fine boring machine tool and the production line, the advantages of considering measurement efficiency, measurement precision and measurement cost are achieved, the rejection rate of the workpiece can be reduced, the production cost is saved, and the comprehensive efficiency of equipment during batch production is improved.
In the following, the above scheme is further explained with reference to specific embodiments:
in an alternative embodiment, as shown in fig. 2, the method for determining the center of a cylinder bore is applied to a fine boring machine tool for a cylinder bore injection process in the manufacture of a linerless engine workpiece, the method comprising:
s1: controlling a measuring head of a fine boring machine tool to start from a design center of the fine boring machine tool, and obtaining a first cylinder hole center coordinate of a cylinder hole to be measured by a four-point circle center measuring method;
specifically, the fine boring machine tool is provided with a workpiece detection probe or a cutter detection probe, and the center of a circle of a cylinder hole can be measured by using a cross-shaped probe arranged on the machine tool. If a cross-shaped measuring head is used, the diameter of the cross-shaped measuring head is equal to the difference value between the diameter of the cylinder hole to be measured and a preset value, and the value range of the preset value is 4-6 mm. Namely, a cross-shaped measuring head which is 4-6 mm smaller than the designed value of the diameter of the cylinder hole is selected for measurement, so that the moving time of the measuring head is reduced, and the measuring efficiency is improved.
The design center is the design center of the fine boring machine tool, and in the embodiment, the center coordinates of the cylinder hole are measured once by a method of measuring the center of a circle by four points, and the measuring head is controlled to start from the design center.
And the four-point circle center measurement means that the measuring head is controlled to respectively contact four points on the inner wall of the cylinder hole to obtain the coordinates of each point, and then the center coordinates of the cylinder hole are calculated according to the coordinates of the four points.
Alternatively, one method of measuring the center coordinates of the first cylinder bore is as follows:
controlling the measuring head to move back and forth along the X direction of the fine boring machine tool, acquiring a first transverse measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole to be measured, and acquiring a second transverse measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole to be measured; then controlling the measuring head to return to the design center;
after the measuring head returns to the design center, controlling the measuring head to move back and forth along the Y direction of the fine boring machine tool, acquiring a first longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole to be measured, and acquiring a second longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole to be measured;
determining an abscissa of the first cylinder bore center coordinate from the first and second lateral measurements; determining a vertical coordinate of the first cylinder bore center coordinate from the first and second longitudinal measurements.
Since the fine boring machine is generally a horizontal machining center, the X direction is the left-right direction and the Y direction is the up-down direction. The measurement process of the above method is then:
under current initial measurement coordinate system, control gauge head is from the design center, utilizes the gauge head to bump down cylinder hole inner wall about along lathe X direction, records two X direction's measured value: x Left side of ，X Right side (ii) a The control measuring head returns to the design center, and then the control measuring head respectively touches the inner wall of the cylinder hole up and down along the Y direction of the machine tool to record the position of two Y directionsMeasured value Y On the upper part ，Y Lower part 。
If the first cylinder hole center measured in the first round is marked as C 1 Its coordinate is (C) 1X ，C 1Y ) It can be calculated by averaging, i.e.:
C 1X ＝(X left side of +X Right side )/2；C 1Y ＝(Y Upper part of +Y Lower part )/2。
S2: controlling the measuring head to return to the design center, and controlling the main shaft of the measuring head to rotate for N times according to a preset angle; after each rotation, controlling the measuring head to start from the design center, and obtaining the (i + 1) th cylinder hole center coordinate of the cylinder hole to be measured in the ith rotation by the four-point circle center measuring method; n is more than or equal to 3 and is an integer, i takes values of 1,2, \8230, 8230and N in sequence;
specifically, step S2 is to repeat the method of measuring the center of a circle by four points in S1 every time the measuring head rotates once according to a preset angle, and obtain the center coordinate of the (i + 1) th cylinder hole in the current measurement coordinate system. The method for measuring the circle center at four points comprises the following specific steps:
controlling the measuring head to move back and forth along the X direction of the fine boring machine tool, acquiring a first transverse measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole to be measured, and acquiring a second transverse measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole to be measured;
after the measuring head returns to the design center, controlling the measuring head to move back and forth along the Y direction of the fine boring machine tool, acquiring a first longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole to be measured, and acquiring a second longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole to be measured;
determining the abscissa of the i +1 th cylinder hole center coordinate according to the first transverse measurement value and the second transverse measurement value; determining the ordinate of the i +1 th cylinder bore center coordinate from the first longitudinal measurement and the second longitudinal measurement.
Through the process, the preset angle of the measuring head rotation every time is measuredCylinder hole center coordinate A in rotated measurement coordinate system i+1 ＝(A (i+1)X ,A (i+1)Y ) I takes the values 1,2, \8230;, N in turn.
Optionally, the value range of N is 5 to 11, that is, the measuring head rotates 5 to 11 times in the machine tool. Taking N =5 as an example, it indicates that the measuring head measures the first cylinder hole center coordinate C in the initial measurement coordinate system 1 Then, the cylinder needs to rotate for 5 times according to a preset angle, and then the center coordinate A of the (i + 1) th cylinder hole measured after each rotation is calculated i+1 Comprising A 2 ，A 3 ，A 4 ，A 5 ，A 6 。
In consideration of the symmetry of the cylinder hole and the measuring principle of measuring the center of a circle by four points, the rotation range of the measuring head can be controlled in one quadrant, so that accurate center coordinates can be obtained, and the measuring time is shortened. Then, optionally, the preset angle for each rotation may be determined according to 90 °/(N + 1), and in case of 5 rotations, i.e. N =5, then the preset angle is 90 °/(5 + 1) =15 °, then a 2 ～A 6 The cylinder hole center coordinates are measured when the measuring head rotates to 15 degrees, 30 degrees, 45 degrees, 60 degrees and 75 degrees respectively. The larger the N value is, the smaller the preset angle of each rotation is, the more accurate the finally obtained circle center coordinates of the cylinder holes are, but the measuring time is correspondingly increased; through practice and analysis, the N = 5-11 is determined, namely the precision and the efficiency of the center coordinates of the cylinder hole determined by the measuring head rotating 5-11 times in the machine tool meet the actual production requirements. At this time, the corresponding preset angle ranges from 8 degrees to 15 degrees.
Optionally, the rotation direction of the measuring head may be determined according to requirements, for example, the measuring head may be rotated clockwise.
The measured cylinder hole center coordinates of the measuring head in the current measuring coordinate system are obtained through the scheme. Research and practice show that if the center of a circle is determined by directly using the measured center coordinates of N +1 groups of cylinder holes, accuracy deviation can be caused because a measurement coordinate system is not uniform, so in order to improve the center alignment accuracy of the circle, the center coordinates of the cylinder holes measured after rotation can be converted into an initial measurement coordinate system where a measuring head spindle is located when the measuring head spindle is not rotated through coordinates, and the method specifically comprises the following steps:
according to the corresponding rotation angle, converting the (i + 1) th cylinder hole center coordinate to an initial measurement coordinate system to obtain the converted (i + 1) th cylinder hole center coordinate; the initial measurement coordinate system is a coordinate system of the gauge head when measuring the first cylinder bore center coordinates.
If the preset angle is alpha, the total rotation angle theta = N alpha corresponding to the (i + 1) th cylinder hole center coordinate, and the cylinder hole center coordinate A before transformation i ＝(A iX ,A iY ) Cylinder hole center coordinates C after transformation i+1 ＝(C (i+1)X ,C (i+1)Y ) Then the transformation formula is as follows:
C (i+1)X ＝A (i+1)X ×cosθ-A (i+1)Y ×sinθ；
C (i+1)Y ＝A (i+1)X ×sinθ+A (i+1)Y ×cosθ。
s3: and determining the circle center coordinate of the cylinder hole to be measured according to the first cylinder hole center coordinate and the (i + 1) th cylinder hole center coordinate.
Specifically, if the i +1 th cylinder hole center coordinate is directly measured using, then according to C 1 And A 2 ，A 3 ……A N+1 And determining the circle center coordinates of the cylinder hole to be measured.
If the i +1 th cylinder bore center coordinate is transformed to the initial measurement coordinate system in step S2, then the first cylinder bore center coordinate C is used as a basis 1 And the transformed i +1 th cylinder bore center coordinate: c 2 ，C 3 ,……,C N+1 And determining the circle center coordinates of the cylinder holes.
Specifically, the center coordinates of the cylinder holes can be determined through mean value calculation, and the method specifically comprises the following steps:
performing mean value calculation according to the abscissa of the center coordinate of the first cylinder hole and the abscissas of the center coordinates of all the converted (i + 1) th cylinder holes to obtain the abscissa of the center coordinate of the cylinder hole;
and performing mean value calculation according to the ordinate of the center coordinate of the first cylinder hole and the ordinate of the center coordinate of the i +1 th cylinder hole after transformation to obtain the ordinate of the center coordinate of the cylinder hole.
Specifically, the center coordinate of the cylinder hole is (O) X ，O Y ) And then:
O X ＝(C 1X +C 2X +…+C (N+1)X )/(N+1)；
O Y ＝(C 1Y +C 2Y +…+C (N+1)Y )/(N+1)。
after the accurate center coordinates of the cylinder hole are obtained, the fine boring machine tool can perform fine boring machining by using the re-determined center coordinates of the cylinder hole, so that machining scrapping is avoided.
On the other hand, because cylinder hole meltallizing process or other processes may produce burr at the cylinder hole inner wall, and when the measuring head measures the centre of a circle, touch more obvious burr, will obviously reduce the measurement error of the centre of a circle of the cylinder hole, therefore, should remove the measuring head and touch the cylinder hole center coordinate on the measuring direction of the burr, in order to improve the measuring accuracy of the centre of a circle coordinate of the cylinder hole, the concrete scheme is as follows:
acquiring a theoretical abscissa and a theoretical ordinate of the circle center of the cylinder hole to be measured;
carrying out mean value calculation according to the abscissa of the center coordinate of the target cylinder hole to obtain the abscissa of the center coordinate of the cylinder hole;
carrying out mean value calculation according to the vertical coordinate of the center coordinate of the target cylinder hole to obtain the vertical coordinate of the center coordinate of the cylinder hole;
wherein if the absolute value of the difference between the abscissa of the first cylinder bore center coordinate and the theoretical abscissa is within 0.2mm, and the absolute value of the difference between the ordinate of the first cylinder bore center coordinate and the theoretical ordinate is within 0.2mm, the first cylinder bore center coordinate is taken as the target cylinder bore center coordinate;
and if the absolute value of the difference between the abscissa of the (i + 1) th cylinder hole center coordinate and the theoretical abscissa is within 0.2mm, and the absolute value of the difference between the ordinate of the (i + 1) th cylinder hole center coordinate and the theoretical ordinate is within 0.2mm, taking the (i + 1) th cylinder hole center coordinate as the target cylinder hole center coordinate.
And the theoretical abscissa and the theoretical ordinate are the coordinates of the current position of the cylinder hole to be measured in the fine boring machine tool and the theoretical center of a circle when the cylinder hole is not deformed. According to the scheme, after the center coordinates of the cylinder holes are obtained through measurement, the center coordinates of the cylinder holes are compared with the abscissa and the ordinate of the theoretical circle center, if the absolute value of the deviation between the abscissa of the center coordinates of the first cylinder hole or the (i + 1) th cylinder hole or the theoretical abscissa exceeds 0.2mm, or the absolute value of the deviation between the ordinate and the theoretical ordinate exceeds 0.2mm, if the two conditions are met, the fact that the center coordinates of the cylinder holes in the current measuring direction have obvious errors is shown, usually, a measuring head touches burrs, the center coordinates of the cylinder holes in the measuring direction are forbidden to be used for calculating the center coordinates of the cylinder holes, and the center coordinates of the cylinder holes obtained in other measuring directions are used for calculating.
In summary, the present embodiment provides a method for determining the center of a cylinder hole, which determines a final center coordinate by measuring the cylinder hole center coordinate of a cylinder hole to be measured in a 0 ° (non-rotation) direction and the cylinder hole center coordinate obtained by rotating N times according to a preset angle. When the center coordinates of the cylinder hole are calculated, the center coordinates of the cylinder hole after rotation are firstly transformed to an initial measurement coordinate system which does not rotate through coordinates, and the measurement precision can be improved. By the scheme of combining the measurement in the machine tool with scientific calculation, the circle center of the cylinder hole of the workpiece in the machine tool can be accurately measured without greatly modifying a fine boring machine tool and a production line; compared with the scanning device added outside the machine tool, the scheme has the advantage of low cost, and practice shows that accurate circle center coordinates of the cylinder holes can be obtained, so that OEE of batch production is guaranteed, and the work waste rate of workpieces is reduced.
In another alternative embodiment, the above scheme is applied to a control system of a fine boring machine tool for a certain engine workpiece, and the detailed implementation steps are as follows:
(1) The fine boring machine tool selects a cross-shaped measuring head which is 4-6 mm smaller than the designed value of the diameter of the cylinder hole, so that the moving time of the measuring head is reduced, and the measuring efficiency is improved; when the workpiece is measured and processed, the workpiece is clamped and does not loosen, and the rotation error of the rotary table is reduced.
(2) Under the initial measurement coordinate system, the control measuring head starts from a design central point, the cross measuring head is utilized to touch the inner wall of the cylinder hole left and right along the X direction of the machine tool, and the measured value X is recorded Left side of ，X Right side . The measuring head returns to the design center, then the cross measuring head is controlled to vertically touch the inner wall of the cylinder hole along the Y direction of the machine tool, and the measured value Y is recorded On the upper part ，Y Lower part 。
The cylinder hole center measured for this round is recorded as C 1 The center coordinate of which is (C) 1X ，C 1Y )：
C 1X ＝(X Left side of +X Right side )/2；C 1Y ＝(Y On the upper part +Y Lower part )/2；
(3) The measuring head returns to the design center, the main shaft rotates clockwise for 15 degrees for orientation, and the current measuring coordinate system also rotates 15 degrees in the same direction. The method referred to in step 2 records the cylinder bore center as A 2 (A 2X ,A 2Y ) And (3) converting the coordinates of the circle center into the initial measurement coordinate system in the step (2) by using coordinate conversion, and calculating the center of the converted cylinder hole as C 2 (C 2X ,C 2Y )；
C 2 And A 2 The conversion formula of (c) is:
C 2X ＝A 2X *cos15°-A 2Y *sin15°；
C 2Y ＝A 2X *sin15°+A 2Y *cos15°；
(4) The measuring head returns to the design center, the main shaft rotates to 30 degrees, 45 degrees, 60 degrees and 75 degrees in the direction of the step 2 respectively, and the measuring coordinate system also rotates to 30 degrees, 45 degrees, 60 degrees and 75 degrees in the direction of the step 2 respectively, and the measured cylinder hole center C is calculated 3 ，C 4 ，C 5 ，C 6 The steps and attitude of the measurement are schematically shown in fig. 3;
(5) The coordinate of the center of the cylinder hole is calculated by an average value method, and the X coordinate is C 1 To C 6 The average of the sum of X coordinates in (1), and Y coordinate is C 1 To C 6 The mean of the sum of the Y coordinates in (a);
(6) In order to prevent cladding burrs from being touched by a measuring head and influencing measuring errors, when the absolute value of deviation between an X coordinate or a Y coordinate of the center of a cylinder hole measured at a certain time and a theoretical circle center coordinate exceeds 0.2mm, the cylinder hole center coordinate in the measuring direction is cancelled to participate in calculation, and the cylinder hole center coordinates of other groups are used for carrying out mean value calculation;
(7) When the engine workpiece has a plurality of cylinder holes, according to the steps (2) to (6), the cylinder hole center coordinates are measured and calculated, and the cylinder hole center coordinates calculated each time and the cylinder hole center coordinates obtained by averaging are stored in the machine tool macro variable. If a memory card is added in the machine tool, data can be stored in the memory card, so that the backup and the like can be traced conveniently;
(8) When the machine tool cutter is used for fine boring, the cylinder hole is machined according to the circle center coordinates of the measured cylinder hole, the waste workpiece rate is reduced, and the efficiency is improved.
Based on the same inventive concept of the foregoing embodiment, in yet another alternative embodiment, as shown in fig. 4, there is provided a cylinder hole circle center determining apparatus, including:
the measuring module 10 is used for controlling a measuring head of the fine boring machine tool to start from a design center of the fine boring machine tool and obtaining a first cylinder hole center coordinate of the cylinder hole to be measured through a four-point circle center measuring method; controlling the main shaft of the measuring head to rotate for N times according to a preset angle; after each rotation, controlling the measuring head to start from the design center, and obtaining the (i + 1) th cylinder hole center coordinate of the cylinder hole to be measured in the ith rotation by the four-point circle center measuring method; n is more than or equal to 3 and is an integer, i takes the values of 1,2, \8230;, N;
and the determining module 20 is configured to determine the cylinder hole circle center coordinate of the cylinder hole to be measured according to the first cylinder hole center coordinate and the (i + 1) th cylinder hole center coordinate.
Optionally, the measurement module 10 is further configured to:
converting the center coordinate of the (i + 1) th cylinder hole to an initial measurement coordinate system according to the corresponding rotation angle to obtain the converted center coordinate of the (i + 1) th cylinder hole; the initial measurement coordinate system is a measurement coordinate system of the measuring head when measuring the center coordinate of the first cylinder hole;
the determination module 20 is configured to:
and determining the circle center coordinate of the cylinder hole according to the first cylinder hole center coordinate and the transformed (i + 1) th cylinder hole center coordinate.
Specifically, the determining module 20 is configured to:
performing mean value calculation according to the abscissa of the center coordinate of the first cylinder hole and the abscissas of the center coordinates of all the transformed (i + 1) th cylinder holes to obtain the abscissa of the center coordinate of the cylinder hole;
and performing mean value calculation according to the ordinate of the center coordinate of the first cylinder hole and the ordinate of the transformed i +1 th cylinder hole center coordinate to obtain the ordinate of the center coordinate of the cylinder hole.
Optionally, the determining module 20 is configured to:
acquiring a theoretical abscissa and a theoretical ordinate of the circle center of the cylinder hole to be measured;
carrying out mean value calculation according to the abscissa of the center coordinate of the target cylinder hole to obtain the abscissa of the center coordinate of the cylinder hole;
carrying out mean value calculation according to the vertical coordinate of the center coordinate of the target cylinder hole to obtain the vertical coordinate of the center coordinate of the cylinder hole;
wherein if the absolute value of the difference between the abscissa of the first cylinder bore center coordinate and the theoretical abscissa is within 0.2mm, and the absolute value of the difference between the ordinate of the first cylinder bore center coordinate and the theoretical ordinate is within 0.2mm, the first cylinder bore center coordinate is taken as the target cylinder bore center coordinate; and if the absolute value of the difference between the abscissa of the center coordinate of the (i + 1) th cylinder hole and the theoretical abscissa is within 0.2mm, and the absolute value of the difference between the ordinate of the center coordinate of the (i + 1) th cylinder hole and the theoretical ordinate is within 0.2mm, taking the center coordinate of the (i + 1) th cylinder hole as the center coordinate of the target cylinder hole.
Optionally, the measurement module 10 is configured to:
controlling the measuring head to move back and forth along the X direction of the fine boring machine tool, acquiring a first transverse measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole to be measured, and acquiring a second transverse measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole to be measured;
after the measuring head returns to the design center, controlling the measuring head to move back and forth along the Y direction of the fine boring machine tool, acquiring a first longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole to be measured, and acquiring a second longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole to be measured;
determining the abscissa of the i +1 th cylinder bore center coordinate from the first and second lateral measurements; determining a vertical coordinate of the i +1 th cylinder bore center coordinate from the first longitudinal measurement and the second longitudinal measurement.
Based on the same inventive concept of the preceding embodiments, in a further alternative embodiment, a fine boring machine is provided, the controller of which is used to program the steps of any one of the determination methods of the preceding embodiments.
Through one or more embodiments of the invention, the invention has the following advantages or advantages:
the invention provides a method and a device for determining the circle center of a cylinder hole and a fine boring machine tool, wherein a four-point circle center measuring method is adopted to obtain the center coordinate of the cylinder hole by controlling a measuring head from the design center of the fine boring machine tool; then controlling the measuring head to return to the design center, rotating according to a preset angle, and measuring the center coordinate of the cylinder hole after rotating; after N times of rotation and measurement, obtaining N +1 groups of cylinder hole center coordinates in total, and then comprehensively determining the cylinder hole circle center coordinates of the cylinder hole to be measured according to the obtained N +1 groups of cylinder hole center coordinates; the cylinder hole is rotated according to a preset angle, and a plurality of groups of cylinder hole center coordinates are obtained by a four-point circle center measuring method to determine a final circle center coordinate, so that the adverse effects of cylinder hole meltallizing deformation and inner wall burrs on circle center alignment are overcome; the reason why the measuring head is controlled to rotate and start at the design center when the center coordinate of the cylinder hole is measured every time is that practice shows that compared with a method that the measuring head does not return to the design center and starts from any point to directly measure, the center coordinate of the cylinder hole center with higher precision can be obtained when the measuring head rotates and starts at the design center. Generally speaking, according to the scheme, the accurate measurement of the circle center of the cylinder hole of the workpiece in the fine boring machine tool can be realized by using the existing measuring head technology on the premise of not significantly changing the layout of the existing fine boring machine tool and the production line, the advantages of considering measurement efficiency, measurement precision and measurement cost are achieved, the rejection rate of the workpiece can be reduced, the production cost is saved, and the comprehensive efficiency of equipment during batch production is improved.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (8)
1. A method for determining the circle center of a cylinder hole is applied to a fine cylinder hole boring stage in a cylinder hole meltallizing process, and comprises the following steps:
controlling a measuring head of a fine boring machine tool to start from a design center of the fine boring machine tool, and obtaining a first cylinder hole center coordinate of a cylinder hole by a four-point circle center measuring method;
controlling the measuring head to return to the design center, and controlling the main shaft of the measuring head to rotate for N times according to a preset angle; after each rotation, controlling the measuring head to start from the design center, and obtaining the (i + 1) th cylinder hole center coordinate of the cylinder hole in the ith rotation by the four-point circle center measuring method; n is more than or equal to 2 and is an integer, i takes the values of 1,2, \8230;, N in sequence;
according to the corresponding rotation angle, converting the (i + 1) th cylinder hole center coordinate to an initial measurement coordinate system to obtain the converted (i + 1) th cylinder hole center coordinate; the initial measurement coordinate system is a measurement coordinate system of the measuring head when measuring the center coordinate of the first cylinder hole;
according to the first cylinder hole center coordinate and the converted (i + 1) th cylinder hole center coordinate, determining the cylinder hole circle center coordinate of the cylinder hole, comprising: performing mean value calculation according to the abscissa of the center coordinate of the first cylinder hole and the abscissas of the center coordinates of all the transformed (i + 1) th cylinder holes to obtain the abscissa of the center coordinate of the cylinder hole; and performing mean value calculation according to the ordinate of the center coordinate of the first cylinder hole and the ordinate of the center coordinate of the (i + 1) th cylinder hole after transformation to obtain the ordinate of the center coordinate of the cylinder hole.
2. The method of determining as described in claim 1, wherein said determining cylinder bore center coordinates for said cylinder bore from said first cylinder bore center coordinate and said transformed i +1 cylinder bore center coordinate comprises:
acquiring a theoretical abscissa and a theoretical ordinate of the circle center of the cylinder hole;
carrying out mean value calculation according to the abscissa of the center coordinate of the target cylinder hole to obtain the abscissa of the center coordinate of the cylinder hole;
carrying out mean value calculation according to the vertical coordinate of the center coordinate of the target cylinder hole to obtain the vertical coordinate of the center coordinate of the cylinder hole;
wherein if the absolute value of the difference between the abscissa of the first cylinder bore center coordinate and the theoretical abscissa is within 0.2mm, and the absolute value of the difference between the ordinate of the first cylinder bore center coordinate and the theoretical ordinate is within 0.2mm, the first cylinder bore center coordinate is taken as the target cylinder bore center coordinate;
and if the absolute value of the difference between the abscissa of the (i + 1) th cylinder hole center coordinate and the theoretical abscissa is within 0.2mm, and the absolute value of the difference between the ordinate of the (i + 1) th cylinder hole center coordinate and the theoretical ordinate is within 0.2mm, taking the (i + 1) th cylinder hole center coordinate as the target cylinder hole center coordinate.
3. The method of determining as described in claim 1 wherein said obtaining an i +1 cylinder bore center coordinate for said cylinder bore at an i-th rotation by said four-point circle center method comprises:
controlling the measuring head to move back and forth along the X direction of the fine boring machine tool, acquiring a first transverse measurement value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole, and acquiring a second transverse measurement value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole;
after the measuring head returns to the design center, controlling the measuring head to move back and forth along the Y direction of the fine boring machine tool, acquiring a first longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at one end of the cylinder hole, and acquiring a second longitudinal measuring value when the measuring head touches the inner wall of the cylinder hole at the other end of the cylinder hole;
determining the abscissa of the i +1 th cylinder hole center coordinate according to the first transverse measurement value and the second transverse measurement value; determining the ordinate of the i +1 th cylinder bore center coordinate from the first longitudinal measurement and the second longitudinal measurement.
4. The method of claim 1, wherein N ranges from 5 to 11.
5. The method of claim 4, wherein the predetermined angle is in a range of 8 ° to 15 °.
6. The determination method according to claim 1, characterized in that the gauge head is a cross-shaped gauge head, the diameter of the cross-shaped gauge head is equal to the difference between the diameter of the cylinder hole and a preset value, and the value of the preset value ranges from 4 mm to 6 mm.
7. A cylinder bore center determination apparatus, comprising:
the measuring module is used for controlling a measuring head of the fine boring machine tool to start from a design center of the fine boring machine tool and obtaining a first cylinder hole center coordinate of a cylinder hole by a four-point circle center measuring method; controlling the main shaft of the measuring head to rotate for N times according to a preset angle; after each rotation, controlling the measuring head to start from the design center, and obtaining the (i + 1) th cylinder hole center coordinate of the cylinder hole in the ith rotation by the four-point circle center measuring method; n is more than or equal to 3 and is an integer, i takes the values of 1,2, \8230;, N; according to the corresponding rotation angle, converting the (i + 1) th cylinder hole center coordinate to an initial measurement coordinate system to obtain the converted (i + 1) th cylinder hole center coordinate; the initial measurement coordinate system is a measurement coordinate system of the measuring head when measuring the center coordinate of the first cylinder hole;
a determination module for determining cylinder bore center coordinates of the cylinder bore according to the first cylinder bore center coordinates and the transformed (i + 1) th cylinder bore center coordinates, comprising: performing mean value calculation according to the abscissa of the center coordinate of the first cylinder hole and the abscissas of the center coordinates of all the transformed (i + 1) th cylinder holes to obtain the abscissa of the center coordinate of the cylinder hole; and performing mean value calculation according to the ordinate of the center coordinate of the first cylinder hole and the ordinate of the center coordinate of the (i + 1) th cylinder hole after transformation to obtain the ordinate of the center coordinate of the cylinder hole.
8. A fine boring machine, characterized in that a controller of the fine boring machine is used for programming the steps of implementing the determination method as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724483.XA CN113600868B (en) | 2021-06-29 | 2021-06-29 | Method and device for determining circle center of cylinder hole and fine boring machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110724483.XA CN113600868B (en) | 2021-06-29 | 2021-06-29 | Method and device for determining circle center of cylinder hole and fine boring machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113600868A CN113600868A (en) | 2021-11-05 |
| CN113600868B true CN113600868B (en) | 2022-11-08 |
Family
ID=78336886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110724483.XA Active CN113600868B (en) | 2021-06-29 | 2021-06-29 | Method and device for determining circle center of cylinder hole and fine boring machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113600868B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090879A2 (en) * | 2001-05-07 | 2002-11-14 | Zeiss, Carl | Method for determining the properties of a co-ordinate measuring device and test object associated therewith |
| JP2005061834A (en) * | 2003-08-08 | 2005-03-10 | Toyoda Mach Works Ltd | Error calculation method for working machine having rotary shaft |
| JP2006349388A (en) * | 2005-06-13 | 2006-12-28 | Roland Dg Corp | Measuring method and measuring instrument for rotation center |
| CN101992407A (en) * | 2009-08-11 | 2011-03-30 | 大隈株式会社 | Error identifying method and error identifying program of machine |
| CN105404238A (en) * | 2015-10-22 | 2016-03-16 | 南京航空航天大学 | Probe position linearization calibration method for on-machine laser measurement |
| CN109443180A (en) * | 2018-10-31 | 2019-03-08 | 珠海格力智能装备有限公司 | Method and device for determining center position of rotating shaft, storage medium and electronic device |
| WO2019178629A1 (en) * | 2018-03-22 | 2019-09-26 | Alpine Metal Tech Gmbh | Device and method for wheel position detection |
| WO2020133538A1 (en) * | 2018-12-29 | 2020-07-02 | 深圳配天智能技术研究院有限公司 | Circular feature detection method, processing system and apparatus having storage function |
| CN112069612A (en) * | 2020-08-12 | 2020-12-11 | 西安工业大学 | Method for evaluating measurement uncertainty of gear measurement center |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013216093B4 (en) * | 2013-08-14 | 2016-06-02 | Carl Zeiss Industrielle Messtechnik Gmbh | Reduction of errors of a rotating device, in particular for the determination of coordinates of a workpiece or the machining of a workpiece |
-
2021
- 2021-06-29 CN CN202110724483.XA patent/CN113600868B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090879A2 (en) * | 2001-05-07 | 2002-11-14 | Zeiss, Carl | Method for determining the properties of a co-ordinate measuring device and test object associated therewith |
| JP2005061834A (en) * | 2003-08-08 | 2005-03-10 | Toyoda Mach Works Ltd | Error calculation method for working machine having rotary shaft |
| JP2006349388A (en) * | 2005-06-13 | 2006-12-28 | Roland Dg Corp | Measuring method and measuring instrument for rotation center |
| CN101992407A (en) * | 2009-08-11 | 2011-03-30 | 大隈株式会社 | Error identifying method and error identifying program of machine |
| CN105404238A (en) * | 2015-10-22 | 2016-03-16 | 南京航空航天大学 | Probe position linearization calibration method for on-machine laser measurement |
| WO2019178629A1 (en) * | 2018-03-22 | 2019-09-26 | Alpine Metal Tech Gmbh | Device and method for wheel position detection |
| CN109443180A (en) * | 2018-10-31 | 2019-03-08 | 珠海格力智能装备有限公司 | Method and device for determining center position of rotating shaft, storage medium and electronic device |
| WO2020133538A1 (en) * | 2018-12-29 | 2020-07-02 | 深圳配天智能技术研究院有限公司 | Circular feature detection method, processing system and apparatus having storage function |
| CN111801709A (en) * | 2018-12-29 | 2020-10-20 | 深圳配天智能技术研究院有限公司 | Circular feature detection method, processing system and device with storage function |
| CN112069612A (en) * | 2020-08-12 | 2020-12-11 | 西安工业大学 | Method for evaluating measurement uncertainty of gear measurement center |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113600868A (en) | 2021-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6955296B2 (en) | Cutting equipment and contact position identification program | |
| CN110270883B (en) | Triaxial numerical control machine tool geometric error and thermal error reverse identification method based on test piece characteristic decomposition | |
| WO2021189298A1 (en) | Swing head position error detection and identification method for ca double-swing-head five-axis numerically controlled machine tool | |
| JP6942577B2 (en) | Numerical control device and numerical control method for machine tools | |
| CN115562161B (en) | On-line monitoring-based cutter cutting path machining error compensation method | |
| CN110539020B (en) | Precision self-diagnosis method for double five-axis mirror milling machine tool | |
| CN107695791B (en) | The general rotation axis geometric error discrimination method unrelated with position | |
| CN113814870B (en) | Method for measuring and calculating pose of magnetorheological polished workpiece and polishing method | |
| JP3433710B2 (en) | V-groove shape measuring method and apparatus | |
| CN112318180A (en) | Alignment tool and method for machining part with closed angle | |
| CN113899329A (en) | Automatic compensation machining method for axial hole position degree | |
| CN116810483A (en) | Five-axis machine tool rotating shaft geometric error identification method based on machining test | |
| CN107900781A (en) | Caliberating device and scaling method for the contact on-line detecting system of lathe | |
| CN113600868B (en) | Method and device for determining circle center of cylinder hole and fine boring machine tool | |
| CN117348546A (en) | Flexible production line process quality evaluation method | |
| US20230152772A1 (en) | Positional relationship measurement method and machining apparatus | |
| JP6933603B2 (en) | Machine tool measurement capability evaluation method and program | |
| JP7074381B2 (en) | Cutting equipment | |
| CN113427320A (en) | Multi-axis on-machine measurement planning method for reducing measurement uncertainty | |
| CN113341878B (en) | Thermal error measuring method of five-axis numerical control machine tool | |
| CN112171277B (en) | Coordinate conversion method between two oblique coordinate systems | |
| CN111843623B (en) | On-machine measurement method and finish machining method of track curved surface | |
| CN115533894B (en) | Robot numerical control machining method and equipment for large satellite structure | |
| CN117245449A (en) | High-precision comparison measurement method and system for on-machine measurement of five-axis machine tool | |
| CN116330043A (en) | Curved surface edge error measurement method and system based on fixed longitude vector measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |